Read for yourself: "• Integrated Neah Power battery for extended, multiple Hour flight times." https://d3ciwvs59ifrt8.cloudfront.net/6867dc99-e989-4019-ad0d-2b574424f2b1/558abb72-5684-4ccc-ab17-9b4f91fcf794.pdf Neah has a working battery...should be hearing some news soon.